Envelopes adjectives are listed in this post. Each word below can often be found in front of the noun envelopes in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing ENVELOPES.
blue, brown, empty, few, floral
large, little, many, more, old
open, other, outer, plastic, red
sealed, separate, several, small, stamped
thick, unopened, white, yellow
Hope this word list had the adjective used with envelopes you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.